--- a/layout/style/test/mochitest.ini
+++ b/layout/style/test/mochitest.ini
@@ -40,17 +40,17 @@ support-files = additional_sheets_helper
 [test_additional_sheets.html]
 skip-if = stylo # bug 1337258
 support-files = additional_sheets_helper.html
 [test_align_justify_computed_values.html]
 [test_align_shorthand_serialization.html]
 skip-if = stylo # bug 1339656
 [test_all_shorthand.html]
 [test_animations.html]
-skip-if = toolkit == 'android'
+skip-if = (toolkit == 'android' || stylo) # bug 1339318 for stylo
 [test_animations_async_tests.html]
 support-files = ../../reftests/fonts/Ahem.ttf file_animations_async_tests.html
 [test_animations_dynamic_changes.html]
 [test_animations_effect_timing_duration.html]
 support-files = file_animations_effect_timing_duration.html
 [test_animations_effect_timing_enddelay.html]
 support-files = file_animations_effect_timing_enddelay.html
 [test_animations_effect_timing_iterations.html]
@@ -194,16 +194,17 @@ support-files = flexbox_layout_testcases
 [test_flexbox_order.html]
 [test_flexbox_order_table.html]
 [test_flexbox_reflow_counts.html]
 [test_font_face_parser.html]
 [test_font_family_parsing.html]
 [test_font_feature_values_parsing.html]
 skip-if = stylo # bug 1339656
 [test_font_loading_api.html]
+skip-if = stylo # timeout bug 1328507
 support-files =
   BitPattern.woff
   file_font_loading_api_vframe.html
 [test_garbage_at_end_of_declarations.html]
 [test_grid_container_shorthands.html]
 skip-if = stylo # bug 1339656
 [test_grid_item_shorthands.html]
 skip-if = stylo # bug 1339656